Initital basic duotecno docu (#28183)

Co-authored-by: Franck Nijhof <frenck@frenck.nl>

source/_integrations/duotecno.markdown

@@ -0,0 +1,19 @@
+---
+title: Duotecno
+description: Access and control your Duotecno nodes.
+ha_category:
+  - Switch
+ha_iot_class: Local Push
+ha_release: '2023.8.0'
+ha_config_flow: true
+ha_codeowners:
+  - '@Cereal2nd'
+ha_domain: duotecno
+ha_platforms:
+  - switch
+ha_integration_type: hub
+---
+
+The Duotecno integration can be used to control [Duotecno](https://www.duotecno.be/) nodes in Home Assistant.
+
+{% include integrations/config_flow.md %}